Stainless Steel Split Lock Washer M6 from Mexico
A helical split ring washer made of stainless steel, designed to provide axial flexibility and prevent loosening of fasteners under vibration. It falls under HTS 7318.21.0090 as a non-threaded spring lock washer of iron or steel, distinct from plain washers. Commonly used in automotive and machinery assemblies.
Duty Rate — Mexico → United States
55.8%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.03.060%Articles of aluminum, of steel, or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans, and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; and semiconductor articles, of any country, as provided in subdivision (aa)(v) of U.S. note 2 to this subchapter
Import Tips
• Verify material certification as stainless steel to avoid reclassification under carbon steel headings
• Include detailed engineering drawings in documentation to confirm spring washer function
• Watch for undervaluation pitfalls; provide cost breakdowns for steel coil sourcing